Memory Module Environmental Optimization via SPD Parameter Storage
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Solution Overview
Problem
Conventional dual in-line memory module (DIMM) systems face complexity and inefficiency in operating at varying voltage, frequency, and temperature conditions due to limited standardized parameters, leading to unpredictable performance and increased firmware complexity, as they typically only support one frequency and require manual hard-coding and extensive testing for optimal settings.
Innovation Solution
Implementing a memory module with both volatile and non-volatile memory devices that store environment-dependent operating parameters, such as CAS latencies and write latencies, within the Serial Presence Detect (SPD) register, allowing for optimal operation across multiple environmental conditions, thereby simplifying firmware complexity and enabling wider compatibility and reduced time-to-market.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional DIMM SPD registers only contain operating parameters for one voltage, frequency, and temperature, then the device complexity is reduced, but the adaptability to different environmental conditions deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-storing multiple sets of operating parameters for different environmental conditions (voltages, frequencies, temperatures) in the SPD register during manufacturing. This allows the memory module to provide optimal parameters for various conditions without requiring complex real-time analysis or testing, thereby improving adaptability while maintaining simple firmware that only needs to retrieve pre-stored parameters based on detected environmental conditions.
2Adaptability or versatility
If hard-coding of system firmware is used to store operating parameters for multiple voltages, frequencies, and temperatures, then the adaptability improves, but the device complexity increases
Solution Approach 1:
The patent applies copying by storing complete sets of operating parameters for multiple environmental conditions directly in the SPD register, which serves as a copy of all necessary configuration data. This eliminates the need for complex hard-coded firmware logic to manage multiple parameter sets, as the SPD register itself contains all required information for different voltages, frequencies, and temperatures, thereby improving adaptability while reducing firmware complexity.
3Reliability
If extensive testing is performed by system integrators to determine optimal settings for each configuration, then the reliability of operating parameters improves, but the loss of time increases
Solution Approach 1:
The patent applies preliminary action by having memory manufacturers perform comprehensive testing and determine optimal operating parameters during the manufacturing process, then store these validated parameters in the SPD register. This transfers the testing burden from system integrators to manufacturers, ensuring reliable parameters are available before deployment and eliminating time-consuming testing at the system integration stage.
4Adaptability or versatility
If operating parameters are hard-coded in system firmware, then the adaptability to different conditions improves, but the ease of manufacture deteriorates
Solution Approach 1:
The patent applies universality by designing the SPD register structure to universally accommodate multiple sets of operating parameters for different environmental conditions using standardized formatting. This allows any memory module to support various voltages, frequencies, and temperatures through a统一的标准接口, improving ease of manufacture and standardization while maintaining adaptability through the multi-parameter SPD structure.
Data Source
AI summary
A memory apparatus enable operation which is adapted to environmental conditions. The memory apparatus includes a memory module that can store and incorporate environment-dependent optimal operating parameters. The memory module comprises a plurality of volatile memory devices and one or more non-volatile memory devices that store a plurality of environment-dependent device parameters for a device selected from the plurality of volatile memory devices. The stored parameters enable the selected device to function optimally in multiple environmental conditions.